Reduction of Free Edge Peeling Stress of Laminated Composites Using Active Piezoelectric Layers

Table 3

Comparison of peak stresses for angle ply laminate ([PZT/45₄/−45₄]s) at the 45/−45 layer interface, where 𝑧/𝐻=1/6, under −0.1% uniaxial strain, fifth iteration, 𝑛=8.

Applied electric; potential (V)	𝜎3		𝜎4
	(MPa)	Reduction (%)	(MPa)	Reduction (%)
0	11.28	0	1.81	0
100	10.73	9.3%	1.63	10.0%
200	9.63	18.6%	1.46	19.3%
300	8.52	24.5%	1.30	28.2%